Defense in Karen Read trial proposes that Boston Police Officer John O'Keefe's death might be linked to a "jealousy"-fueled fight with ATF agent Brian Higgins.

Text messages between defendant Karen Read and ATF agent Brian Higgins are essential to understanding the theories behind both the prosecution and defense’s case.  Read all of them here.

Video played for jurors in the Karen Read trial shows Brian Higgins at the Canton police station on the night John O'Keefe died, Massachusetts State Police Sgt. Yuri Bukhenik testified.

Yuri Bukhenik, a Massachusetts State Police trooper, read dozens of text messages between Karen Read and Brian Higgins, an ATF agent.

Karen Read exchanged flirty texts with another man two weeks before her cop boyfriend was found murdered, according to testimony Friday.

The Karen Read trial continued Friday with a key investigator reading text messages between her and Brian Higgins.

Karen Read accused John O'Keefe of cheating on her on a trip to Aruba in 2021. Prosecutors want the jury to hear more about the incident.

Massachusetts State Police Sgt. Yuri Bukhenik testifies in a case involving Karen Read, who is accused of hitting her boyfriend with an SUV and leaving him to die.

To put a label on the whole thing, my opinion is that she’s trying to get revenge,” Massachusetts State Police Sgt. Yuriy Bukhenik testified Friday.